Taxon - Odkazy a literatura
Ernst A. (2008): Trepostome and Cryptostome Bryozoans from the Koněprusy Limestone (Lower Devonian, Pragian) of Zlatý Kůň (Czech Republic), Rivista Italiana di Paleontologia e Stratigrafia, 114, 3 [jako Cyclopelta sacculus (Barrande in Počta, 1894)]
McKinney F. K., Kříž J. (1986): Lower Devonian Fenestrata (Bryozoa) of the Prague Basin, Barrandian Area, Bohemia, Czechoslovakia, Fieldiana, Geology 15 [jako Cyclopelta sacculus (Barrande in Počta, 1894)]